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is there like a tutorial that walks though the process, step by step, to get like a hello world project hosted some where?

Just added a video tutorial on the landing page. https://coolify.io

i chuckled at seeing SSH “root” login.

might be a thing for web-developers to do but it is deeply frowned upon by the cybersecurity community.

What is the extra danger of "root" if there is only one user/application on that system?